<s>
The	O
is	O
a	O
dual-screen	O
handheld	B-Application
game	I-Application
console	I-Application
released	O
by	O
Nintendo	O
.	O
</s>
<s>
It	O
is	O
the	O
third	O
iteration	B-Algorithm
of	O
the	O
Nintendo	B-Device
DS	I-Device
,	O
and	O
its	O
primary	O
market	O
rival	O
was	O
Sony	B-Operating_System
's	I-Operating_System
PlayStation	I-Operating_System
Portable	I-Operating_System
(	O
PSP	B-Operating_System
)	O
.	O
</s>
<s>
The	O
fourth	O
iteration	B-Algorithm
,	O
entitled	O
is	O
a	O
larger	O
model	O
that	O
launched	O
in	O
Japan	O
on	O
November	O
21	O
,	O
2009	O
,	O
and	O
worldwide	O
beginning	O
in	O
March	O
2010	O
.	O
</s>
<s>
Development	O
of	O
the	O
DSi	O
began	O
in	O
late	O
2006	O
,	O
and	O
the	O
handheld	B-Application
was	O
unveiled	O
during	O
an	O
October	O
2008	O
Nintendo	O
conference	O
in	O
Tokyo	O
.	O
</s>
<s>
Consumer	O
demand	O
convinced	O
Nintendo	O
to	O
produce	O
a	O
slimmer	O
handheld	B-Application
with	O
larger	O
screens	O
than	O
the	O
DS	B-Device
Lite	I-Device
.	O
</s>
<s>
Consequently	O
,	O
Nintendo	O
removed	O
the	O
Game	B-Device
Boy	I-Device
Advance	I-Device
(	O
GBA	B-Device
)	O
cartridge	O
slot	O
to	O
improve	O
portability	O
without	O
sacrificing	O
durability	O
.	O
</s>
<s>
While	O
the	O
DSi	O
's	O
design	O
is	O
similar	O
to	O
that	O
of	O
the	O
DS	B-Device
Lite	I-Device
,	O
it	O
features	O
two	O
digital	B-Device
cameras	I-Device
,	O
supports	O
internal	O
and	O
external	O
content	O
storage	O
,	O
and	O
connects	O
to	O
an	O
online	O
store	O
called	O
the	O
Nintendo	O
DSi	O
Shop	O
.	O
</s>
<s>
Nintendo	O
stated	O
that	O
families	O
often	O
share	O
DS	B-Device
and	O
DS	B-Device
Lite	I-Device
consoles	O
.	O
</s>
<s>
The	O
handheld	B-Application
supports	O
exclusive	O
physical	O
media	O
in	O
addition	O
to	O
DS	B-Device
games	I-Device
with	O
DSi-specific	O
features	O
and	O
standard	B-Device
DS	I-Device
titles	I-Device
.	O
</s>
<s>
The	O
only	O
exception	O
to	O
its	O
backward	B-General_Concept
compatibility	I-General_Concept
are	O
earlier	O
DS	B-Device
games	I-Device
that	O
required	O
the	O
GBA	B-Device
slot	O
.	O
</s>
<s>
They	O
were	O
succeeded	O
by	O
the	O
Nintendo	B-Operating_System
3DS	I-Operating_System
.	O
</s>
<s>
Reviews	O
of	O
the	O
Nintendo	O
DSi	O
were	O
generally	O
positive	O
;	O
IGN	O
and	O
bit-tech	O
decried	O
the	O
console	O
's	O
lack	O
of	O
exclusive	O
software	O
and	O
removal	O
of	O
the	O
GBA	B-Device
cartridge	O
slot	O
,	O
though	O
its	O
added	O
functionality	O
caused	O
many	O
journalists	O
to	O
recommend	O
it	O
to	O
those	O
who	O
had	O
not	O
purchased	O
a	O
previous	O
DS	B-Device
model	O
.	O
</s>
<s>
Numerous	O
critics	O
were	O
disappointed	O
with	O
the	O
limited	O
resolution	O
of	O
DSi	O
's	O
cameras	O
,	O
though	O
others	O
such	O
as	O
Ars	O
Technica	O
and	O
GameSpot	O
agreed	O
they	O
were	O
adequate	O
for	O
the	O
handheld	B-Application
's	O
display	O
.	O
</s>
<s>
CNET	O
and	O
PCWorld	O
considered	O
the	O
DSi	O
Shop	O
to	O
be	O
the	O
most	O
important	O
buying	O
incentive	O
for	O
current	O
DS	B-Device
owners	O
.	O
</s>
<s>
GamePro	O
and	O
Wired	O
UK	O
,	O
on	O
the	O
other	O
hand	O
,	O
praised	O
the	O
DSi	O
XL	O
's	O
larger	O
screens	O
for	O
improving	O
the	O
gameplay	O
experience	O
and	O
revitalizing	O
older	O
DS	B-Device
games	I-Device
.	O
</s>
<s>
Work	O
went	O
at	O
a	O
quick	O
pace	O
to	O
meet	O
deadlines	O
;	O
his	O
team	O
had	O
to	O
devise	O
a	O
theme	O
for	O
the	O
new	O
DS	B-Device
in	O
time	O
for	O
a	O
late	O
December	O
presentation	O
,	O
and	O
by	O
February	O
2007	O
,	O
most	O
specifications	O
for	O
a	O
chipset	B-Device
had	O
to	O
be	O
completed	O
.	O
</s>
<s>
Kuwahara	O
reported	O
that	O
his	O
team	O
had	O
difficulty	O
determining	O
the	O
potential	O
market	O
for	O
the	O
handheld	B-Application
during	O
the	O
design	O
process	O
;	O
he	O
said	O
of	O
their	O
goal	O
,	O
"	O
We	O
have	O
to	O
be	O
able	O
to	O
sell	O
the	O
console	O
on	O
its	O
own	O
[	O
without	O
games	O
at	O
launch ]	O
.	O
</s>
<s>
It	O
also	O
has	O
to	O
be	O
able	O
to	O
meld	O
into	O
the	O
already-existing	O
DS	B-Device
market.	O
"	O
</s>
<s>
The	O
console	O
's	O
digital	B-Device
cameras	I-Device
were	O
considered	O
early	O
in	O
development	O
:	O
Nintendo	O
president	O
and	O
Chief	O
Executive	O
Officer	O
Satoru	O
Iwata	O
described	O
the	O
touchscreen	B-Device
as	O
the	O
Nintendo	B-Device
DS	I-Device
's	O
sense	O
of	O
touch	O
,	O
and	O
the	O
microphone	O
as	O
its	O
"	O
ears	O
"	O
;	O
a	O
co-worker	O
suggested	O
that	O
it	O
should	O
have	O
"	O
eyes	O
"	O
.	O
</s>
<s>
Owing	O
to	O
consumer	O
demand	O
,	O
Nintendo	O
also	O
improved	O
the	O
handhelds	B-Application
 '	O
volume	O
and	O
audio	O
quality	O
and	O
made	O
it	O
slimmer	O
with	O
larger	O
screens	O
compared	O
to	O
the	O
Nintendo	B-Device
DS	I-Device
Lite	I-Device
.	O
</s>
<s>
However	O
,	O
to	O
improve	O
portability	O
without	O
sacrificing	O
durability	O
,	O
the	O
GBA	B-Device
cartridge	O
slot	O
present	O
on	O
earlier	O
models	O
was	O
removed	O
.	O
</s>
<s>
To	O
compensate	O
,	O
Nintendo	O
continued	O
to	O
support	O
the	O
DS	B-Device
Lite	I-Device
as	O
long	O
as	O
there	O
was	O
consumer	O
demand	O
for	O
it	O
.	O
</s>
<s>
Its	O
original	O
design	O
included	O
two	O
DS	B-Device
game	I-Device
card	I-Device
slots	O
,	O
because	O
of	O
demand	O
from	O
both	O
fan	O
communities	O
and	O
Nintendo	O
employees	O
,	O
which	O
consequently	O
made	O
it	O
larger	O
.	O
</s>
<s>
Ever	O
since	O
the	O
handheld	B-Application
's	O
in-company	O
unveiling	O
,	O
its	O
internal	O
designs	O
were	O
finished	O
along	O
with	O
assembly	O
and	O
durability	O
specifications	O
.	O
</s>
<s>
Iwata	O
described	O
having	O
to	O
resize	O
the	O
console	O
so	O
close	O
to	O
manufacturing	O
as	O
being	O
essentially	O
the	O
same	O
as	O
making	O
another	O
handheld	B-Application
.	O
</s>
<s>
Yui	O
Ehara	O
,	O
designer	O
of	O
the	O
DS	B-Device
Lite	I-Device
and	O
DSi	O
's	O
original	O
casing	O
,	O
had	O
to	O
redesign	O
the	O
revised	O
case	O
.	O
</s>
<s>
He	O
advocated	O
changing	O
the	O
six	O
speaker	O
apertures	O
,	O
as	O
their	O
circular	O
perforations	O
were	O
redundant	O
to	O
the	O
rest	O
of	O
the	O
handheld	B-Application
's	O
interface	O
.	O
</s>
<s>
Ehara	O
hoped	O
the	O
DSi	O
's	O
added	O
features	O
would	O
not	O
interfere	O
with	O
his	O
desired	O
iconic	O
image	O
of	O
the	O
Nintendo	B-Device
DS	I-Device
product	O
line	O
:	O
two	O
rectangles	O
,	O
one	O
on	O
top	O
of	O
the	O
other	O
,	O
with	O
each	O
half	O
containing	O
another	O
rectangle	O
inside	O
.	O
</s>
<s>
While	O
the	O
DS	B-Device
product	O
line	O
's	O
worldwide	O
yearly	O
sales	O
figures	O
consistently	O
surpassed	O
those	O
of	O
its	O
primary	O
market	O
rival	O
,	O
Sony	B-Operating_System
's	I-Operating_System
PlayStation	I-Operating_System
Portable	I-Operating_System
,	O
demand	O
for	O
it	O
in	O
Japan	O
was	O
decreasing	O
;	O
Nintendo	O
's	O
launch	O
of	O
the	O
DSi	O
was	O
intended	O
to	O
stimulate	O
sales	O
.	O
</s>
<s>
The	O
company	O
was	O
less	O
concerned	O
with	O
releasing	O
the	O
DSi	O
in	O
other	O
territories	O
,	O
where	O
DS	B-Device
Lite	I-Device
market	O
demand	O
remained	O
high	O
.	O
</s>
<s>
Development	O
of	O
a	O
large	O
DS	B-Device
Lite	I-Device
model	O
in	O
2007	O
eventually	O
led	O
to	O
the	O
DSi	O
XL	O
.	O
</s>
<s>
Nintendo	O
had	O
designed	O
a	O
large	O
DS	B-Device
Lite	I-Device
model	O
with	O
screens	O
,	O
compared	O
to	O
the	O
standard	O
screens	O
;	O
development	O
of	O
this	O
new	O
handheld	B-Application
advanced	O
far	O
enough	O
that	O
it	O
could	O
have	O
begun	O
mass	O
production	O
.	O
</s>
<s>
However	O
,	O
Iwata	O
placed	O
the	O
project	O
on	O
hold	O
due	O
to	O
consumer	O
demand	O
for	O
the	O
DS	B-Device
Lite	I-Device
and	O
Wii	B-Operating_System
.	O
</s>
<s>
Mario	B-Application
creator	O
Shigeru	O
Miyamoto	O
insisted	O
on	O
"	O
DSi	O
Deka	O
"	O
.	O
</s>
<s>
The	O
handheld	B-Application
has	O
an	O
improved	O
viewing	B-General_Concept
angle	I-General_Concept
over	O
its	O
predecessor	O
,	O
which	O
allows	O
onlookers	O
to	O
see	O
the	O
screen	O
's	O
contents	O
more	O
easily	O
.	O
</s>
<s>
This	O
feature	O
was	O
absent	O
from	O
the	O
large	O
DS	B-Device
Lite	I-Device
model	O
due	O
to	O
cost	O
issues	O
at	O
the	O
time	O
,	O
which	O
also	O
limited	O
LCD	B-Device
screen	I-Device
size	O
.	O
</s>
<s>
The	O
cost	O
of	O
LCD	B-Device
screens	I-Device
is	O
determined	O
by	O
how	O
many	O
pieces	O
are	O
cut	O
from	O
a	O
single	O
large	O
glass	O
sheet	O
.	O
</s>
<s>
It	O
launched	O
in	O
the	O
United	O
States	O
and	O
Canada	O
on	O
April	O
5	O
,	O
alongside	O
the	O
game	O
Rhythm	B-Application
Heaven	I-Application
.	O
</s>
<s>
It	O
was	O
the	O
first	O
DS	B-Device
console	O
to	O
launch	O
with	O
multiple	O
colors	O
in	O
North	O
America	O
—	O
black	O
and	O
blue	O
.	O
</s>
<s>
iQue	O
released	O
a	O
Chinese	O
DSi	O
model	O
in	O
black	O
and	O
white	O
,	O
with	O
a	O
pre-installed	O
version	O
of	O
Nintendogs	B-Application
,	O
in	O
December	O
2009	O
;	O
the	O
Nikkei	O
Sangyo	O
Shimbun	O
reported	O
that	O
the	O
Chinese	O
and	O
Korean	O
models	O
featured	O
improved	O
security	O
,	O
to	O
combat	O
piracy	O
.	O
</s>
<s>
On	O
April	O
15	O
,	O
2010	O
,	O
the	O
DSi	O
was	O
launched	O
in	O
South	O
Korea	O
in	O
white	O
,	O
black	O
,	O
blue	O
,	O
and	O
pink	O
,	O
alongside	O
the	O
game	O
MapleStory	B-Application
DS	I-Application
.	O
</s>
<s>
MapleStory	B-Application
DS	I-Application
was	O
also	O
bundled	O
with	O
a	O
red	O
limited-edition	O
DSi	O
,	O
which	O
had	O
characters	O
from	O
the	O
game	O
printed	O
around	O
its	O
external	O
camera	O
.	O
</s>
<s>
By	O
the	O
end	O
of	O
the	O
month	O
,	O
the	O
DSi	O
sold	O
535,000	O
units	O
,	O
in	O
comparison	O
to	O
550,000	O
DS	B-Device
Lites	I-Device
sold	O
in	O
its	O
launch	O
month	O
.	O
</s>
<s>
North	O
American	O
first	O
week	O
sales	O
almost	O
doubled	O
the	O
DS	B-Device
Lite	I-Device
's	O
226,000	O
units	O
by	O
selling	O
435,000	O
.	O
</s>
<s>
In	O
the	O
United	O
Kingdom	O
,	O
the	O
console	O
totaled	O
92,000	O
sales	O
within	O
two	O
days	O
of	O
release	O
,	O
which	O
GfK/Chart	O
-Track	O
data	O
showed	O
to	O
be	O
the	O
fourth-best	O
opening	O
weekend	O
ever	O
in	O
the	O
region	O
—	O
higher	O
than	O
previous	O
records	O
set	O
by	O
other	O
DS	B-Device
iterations	B-Algorithm
.	O
</s>
<s>
A	O
human-sized	O
Lego	B-Language
DSi	O
by	O
artist	O
Sean	O
Kenney	O
was	O
on	O
display	O
at	O
the	O
Nintendo	O
World	O
Store	O
.	O
</s>
<s>
The	O
2011	O
release	O
of	O
the	O
Nintendo	B-Operating_System
3DS	I-Operating_System
,	O
the	O
successor	O
to	O
the	O
Nintendo	B-Device
DS	I-Device
series	O
of	O
handhelds	B-Application
,	O
was	O
announced	O
on	O
March	O
23	O
,	O
2010	O
,	O
to	O
preempt	O
impending	O
news	O
leaks	O
by	O
the	O
Japanese	O
press	O
and	O
to	O
attract	O
potential	O
attendees	O
to	O
the	O
Electronic	O
Entertainment	O
Expo	O
.	O
</s>
<s>
Iwata	O
dismissed	O
any	O
significant	O
impact	O
when	O
speaking	O
to	O
concerned	O
investors	O
,	O
"	O
those	O
who	O
are	O
eager	O
to	O
buy	O
Nintendo	B-Operating_System
3DS	I-Operating_System
right	O
after	O
the	O
announcement	O
generally	O
tend	O
to	O
react	O
quickly	O
to	O
anything	O
new	O
on	O
the	O
market	O
,	O
and	O
those	O
who	O
are	O
purchasing	O
a	O
Nintendo	B-Device
DS	I-Device
today	O
tend	O
to	O
react	O
relatively	O
slowly.	O
"	O
</s>
<s>
380px|alt	O
=	O
Multi-colored	O
line	O
graph.2008	O
–	O
2012	O
Nintendo	B-Device
DS	I-Device
worldwide	O
sales	O
.	O
</s>
<s>
Nintendo	O
targeted	O
a	O
wider	O
demographic	O
profile	O
with	O
the	O
first	O
Nintendo	B-Device
DS	I-Device
(	O
2004	O
)	O
than	O
it	O
had	O
with	O
the	O
Game	B-Device
Boy	I-Device
line	I-Device
.	O
</s>
<s>
Comparing	O
2008	O
life-to-date	O
DS	B-Device
and	O
DS	B-Device
Lite	I-Device
sales	O
to	O
the	O
best-selling	B-Application
game	I-Application
console	I-Application
,	O
Sony	O
's	O
PlayStation	B-Device
2	I-Device
,	O
showed	O
potential	O
in	O
further	O
expanding	O
the	O
Nintendo	B-Device
DS	I-Device
gaming	O
population	O
—	O
particularly	O
in	O
Europe	O
and	O
the	O
United	O
States	O
.	O
</s>
<s>
Iwata	O
has	O
said	O
that	O
families	O
often	O
share	O
DS	B-Device
and	O
DS	B-Device
Lite	I-Device
consoles	O
,	O
so	O
to	O
encourage	O
each	O
family	O
member	O
to	O
buy	O
an	O
individual	O
handheld	B-Application
,	O
Nintendo	O
added	O
personalization	O
features	O
to	O
the	O
DSi	O
.	O
</s>
<s>
The	O
"	O
i	O
"	O
in	O
DSi	O
symbolizes	O
both	O
an	O
individual	O
person	O
(	O
I	O
)	O
and	O
the	O
handheld	B-Application
's	O
cameras	O
(	O
eyes	O
)	O
;	O
the	O
former	O
meaning	O
contrasts	O
with	O
the	O
"	O
i	O
"	O
 '	O
s	O
in	O
Wii	B-Operating_System
,	O
which	O
represent	O
players	O
gathering	O
together	O
.	O
</s>
<s>
Nintendo	O
of	O
America	O
president	O
Reggie	O
Fils-Aimé	O
said	O
,	O
"	O
If	O
Wii	B-Operating_System
was	O
about	O
gaming	O
for	O
the	O
masses	O
,	O
then	O
think	O
of	O
DSi	O
as	O
creativity	O
for	O
the	O
masses.	O
"	O
</s>
<s>
In	O
response	O
to	O
media	O
commentary	O
following	O
the	O
DSi	O
's	O
announcement	O
,	O
Iwata	O
insisted	O
that	O
its	O
new	O
audio	O
and	O
camera	O
capabilities	O
are	O
not	O
meant	O
to	O
compete	O
with	O
mobile	O
phones	O
,	O
the	B-Device
iPod	I-Device
,	O
or	O
the	O
PSP	B-Operating_System
.	O
</s>
<s>
The	O
DSi	O
helped	O
maintain	O
strong	O
sales	O
for	O
Nintendo	O
's	O
handheld	B-Application
product	O
line	O
.	O
</s>
<s>
In	O
the	O
United	O
States	O
,	O
the	O
console	O
's	O
initial	O
three-month	O
sales	O
surpassed	O
those	O
of	O
the	O
DS	B-Device
,	O
DS	B-Device
Lite	I-Device
,	O
and	O
Wii	B-Operating_System
.	O
</s>
<s>
Average	O
weekly	O
sales	O
of	O
the	B-Operating_System
Wii	I-Operating_System
and	O
Nintendo	B-Device
DS	I-Device
declined	O
slightly	O
in	O
March	O
;	O
Nintendo	B-Device
DS	I-Device
hardware	O
sales	O
stabilized	O
at	O
over	O
200,000	O
units	O
for	O
seven	O
months	O
after	O
the	O
DSi	O
's	O
April	O
launch	O
,	O
while	O
Wii	B-Operating_System
sales	O
diminished	O
.	O
</s>
<s>
Gamasutra	O
estimated	O
that	O
,	O
in	O
October	O
2009	O
and	O
February	O
2010	O
,	O
50	O
percent	O
of	O
Nintendo	B-Device
DS	I-Device
unit	O
sales	O
were	O
DSi	O
consoles	O
.	O
</s>
<s>
The	O
United	O
States	O
had	O
its	O
highest	O
yearly	O
DS	B-Device
sales	O
in	O
2009	O
with	O
11.22	O
million	O
units	O
sold	O
.	O
</s>
<s>
In	O
Gamasutra	O
's	O
United	O
States	O
hardware	O
sales	O
estimate	O
for	O
July	O
2010	O
,	O
the	O
DSi	O
and	O
DSi	O
XL	O
each	O
outsold	O
the	O
DS	B-Device
Lite	I-Device
.	O
</s>
<s>
As	O
a	O
result	O
,	O
the	O
average	O
price	O
consumers	O
were	O
spending	O
on	O
the	O
Nintendo	B-Device
DS	I-Device
hardware	O
family	O
rose	O
to	O
over	O
$165	O
(	O
in	O
2004	O
dollars	O
,	O
$	O
adjusted	O
for	O
inflation	O
as	O
of	O
2010	O
)	O
,	O
which	O
is	O
over	O
$15	O
more	O
than	O
the	O
November	O
2004	O
launch	O
price	O
of	O
the	O
original	O
Nintendo	B-Device
DS	I-Device
.	O
</s>
<s>
In	O
a	O
United	O
States	O
hardware	O
sales	O
estimate	O
for	O
July	O
2011	O
by	O
Gamasutra	O
following	O
the	O
DS	B-Device
Lite	I-Device
's	O
price	O
drop	O
a	O
month	O
earlier	O
,	O
about	O
60	O
to	O
70	O
percent	O
of	O
approximately	O
290,000	O
DS	B-Device
units	O
sold	O
were	O
DSi	O
and	O
DSi	O
XL	O
consoles	O
.	O
</s>
<s>
Lackluster	O
3DS	B-Operating_System
sales	O
forced	O
Nintendo	O
to	O
drop	O
its	O
price	O
to	O
match	O
the	O
DSi	O
XL	O
in	O
the	O
United	O
States	O
on	O
August	O
12	O
.	O
</s>
<s>
Gamasutra	O
speculated	O
potential	O
DS	B-Device
buyers	O
in	O
the	O
United	O
States	O
opted	O
for	O
the	O
3DS	B-Operating_System
as	O
a	O
result	O
;	O
DS	B-Device
sales	O
for	O
August	O
2011	O
decreased	O
by	O
45	O
percent	O
,	O
while	O
it	O
combined	O
with	O
3DS	B-Operating_System
sales	O
remained	O
steady	O
compared	O
to	O
the	O
previous	O
month	O
.	O
</s>
<s>
Gamasutra	O
called	O
these	O
price	O
cuts	O
the	O
DS	B-Device
product	O
line	O
's	O
"	O
final	O
send-off	O
"	O
and	O
expects	O
"	O
by	O
this	O
time	O
next	O
year	O
its	O
contributions	O
to	O
the	O
market	O
will	O
be	O
minuscule	O
.	O
</s>
<s>
After	O
Christmas	O
,	O
Nintendo	O
will	O
effectively	O
be	O
a	O
single-handheld	O
system	O
company	O
,	O
putting	O
all	O
of	O
portable	O
software	O
efforts	O
into	O
the	O
Nintendo	O
3DS.	O
"	O
</s>
<s>
The	O
Nintendo	O
DSi	O
's	O
design	O
is	O
similar	O
to	O
that	O
of	O
the	O
second	O
DS	B-Device
iteration	B-Algorithm
,	O
the	O
Nintendo	B-Device
DS	I-Device
Lite	I-Device
.	O
</s>
<s>
It	O
is	O
approximately	O
12	O
percent	O
shorter	O
(	O
)	O
than	O
the	O
Nintendo	B-Device
DS	I-Device
Lite	I-Device
when	O
closed	O
,	O
but	O
slightly	O
wider	O
and	O
lighter	O
.	O
</s>
<s>
The	O
DSi	O
has	O
two	O
TFT-LCD	B-Device
screens	O
—	O
larger	O
than	O
those	O
of	O
previous	O
models	O
—	O
that	O
are	O
capable	O
of	O
displaying	O
262,144	O
colors	O
.	O
</s>
<s>
The	O
touch	O
sensitive	O
lower	O
screen	O
accepts	O
input	O
from	O
the	O
included	O
stylus	B-Device
.	O
</s>
<s>
The	O
handheld	B-Application
features	O
four	O
lettered	O
buttons	O
(	O
X	O
,	O
Y	O
,	O
A	O
,	O
B	O
)	O
,	O
a	O
directional	O
pad	O
,	O
and	O
Start	O
,	O
Select	O
,	O
and	O
Power	O
buttons	O
.	O
</s>
<s>
Two	O
shoulder	O
buttons	O
,	O
a	O
game	B-Device
card	I-Device
slot	O
,	O
and	O
a	O
power	O
cable	O
input	O
are	O
placed	O
under	O
the	O
console	O
's	O
hinge	O
.	O
</s>
<s>
The	O
included	O
AC	O
adapter	O
(	O
WAP-002	O
)	O
is	O
not	O
compatible	O
with	O
any	O
previous	O
DS	B-Device
model	O
.	O
</s>
<s>
Unlike	O
previous	O
models	O
,	O
the	O
handheld	B-Application
has	O
two	O
VGA	B-Protocol
(	O
0.3-megapixel	O
)	O
digital	B-Device
cameras	I-Device
.	O
</s>
<s>
The	O
SD	B-Device
card	I-Device
slot	O
is	O
also	O
new	O
,	O
set	O
behind	O
a	O
cover	O
on	O
the	O
right	O
side	O
.	O
</s>
<s>
While	O
the	O
DS	B-Device
Lite	I-Device
used	O
a	O
switch	O
,	O
the	O
DSi	O
,	O
like	O
the	O
original	O
Nintendo	B-Device
DS	I-Device
,	O
features	O
a	O
button	O
to	O
power	O
on	O
or	O
off	O
.	O
</s>
<s>
The	O
button	O
has	O
extra	O
functions	O
and	O
unlike	O
the	O
original	O
's	O
power	O
button	O
,	O
it	O
is	O
located	O
on	O
the	O
bottom-left	O
side	O
of	O
the	O
touchscreen	B-Device
.	O
</s>
<s>
Brightness	O
and	O
volume	O
controls	O
are	O
on	O
the	O
left	O
side	O
;	O
five	O
brightness	O
settings	O
—	O
one	O
more	O
than	O
on	O
the	O
DS	B-Device
Lite	I-Device
—	O
are	O
available	O
.	O
</s>
<s>
The	O
headset	B-Device
port	O
is	O
on	O
the	O
bottom	O
.	O
</s>
<s>
Numerous	O
special-edition	O
models	O
and	O
bundles	O
have	O
been	O
released	O
,	O
including	O
those	O
for	O
Ace	B-Application
Attorney	I-Application
Investigations	I-Application
:	I-Application
Miles	I-Application
Edgeworth	I-Application
,	O
Final	B-Application
Fantasy	I-Application
Crystal	I-Application
Chronicles	I-Application
:	I-Application
Echoes	I-Application
of	I-Application
Time	I-Application
,	O
and	O
the	O
2009	O
Black	O
Friday	O
shopping	O
day	O
.	O
</s>
<s>
The	O
DSi	O
has	O
more	O
RAM	B-Architecture
and	O
a	O
faster	O
CPU	B-General_Concept
than	O
the	O
DS	B-Device
Lite	I-Device
.	O
</s>
<s>
Developers	O
reported	O
the	O
console	O
has	O
a	O
native	B-Language
mode	I-Language
,	O
which	O
runs	O
software	O
specifically	O
designed	O
for	O
its	O
hardware	O
,	O
access	O
to	O
the	O
system	O
's	O
extra	O
processing	O
and	O
memory	O
resources	O
.	O
</s>
<s>
The	O
inclusion	O
of	O
a	O
codec	B-General_Concept
integrated	O
circuit	O
(	O
a	O
microchip	O
)	O
amplifies	O
sound	O
signals	O
and	O
converts	O
them	O
from	O
digital	O
to	O
analog	O
.	O
</s>
<s>
Unused	O
space	O
on	O
the	O
motherboard	B-Device
was	O
removed	O
;	O
the	O
CPU	B-General_Concept
was	O
relocated	O
,	O
and	O
the	O
battery	O
housing	O
was	O
expanded	O
.	O
</s>
<s>
The	O
camera	O
's	O
resolution	O
is	O
two-and-a-half	O
times	O
higher	O
than	O
the	O
handheld	B-Application
's	O
screens	O
.	O
</s>
<s>
However	O
,	O
their	O
resolution	O
is	O
considerably	O
lower	O
than	O
contemporaneous	O
digital	B-Device
cameras	I-Device
and	O
mobile	O
phones	O
.	O
</s>
<s>
CPU	B-General_Concept
:	O
The	O
DSi	O
has	O
two	O
ARM	B-Architecture
architecture	I-Architecture
CPUs	O
:	O
ARM9	O
clocked	O
at	O
133MHz	O
and	O
ARM7	O
clocked	O
at	O
33MHz	O
.	O
</s>
<s>
Battery	O
:	O
Shorter	O
than	O
the	O
DS	B-Device
Lite	I-Device
,	O
regardless	O
of	O
brightness	O
setting	O
;	O
for	O
example	O
,	O
the	O
DSi	O
has	O
a	O
battery	O
life	O
of	O
9	O
–	O
14	O
hours	O
on	O
the	O
lowest	O
brightness	O
setting	O
,	O
compared	O
to	O
the	O
15	O
–	O
19	O
hours	O
of	O
the	O
DS	B-Device
Lite	I-Device
on	O
the	O
same	O
setting	O
.	O
</s>
<s>
The	O
battery	O
is	O
an	O
840mAh	O
internal	O
rechargeable	O
,	O
compared	O
to	O
1000mAh	O
for	O
the	O
DS	B-Device
Lite	I-Device
,	O
and	O
has	O
an	O
optimal	O
lifespan	O
of	O
approximately	O
500	O
cycles	O
;	O
after	O
this	O
point	O
,	O
it	O
may	O
be	O
replaced	O
by	O
the	O
user	O
.	O
</s>
<s>
It	O
is	O
the	O
fourth	O
DS	B-Device
model	O
,	O
the	O
first	O
to	O
be	O
available	O
as	O
a	O
pure	O
size	O
variation	O
.	O
</s>
<s>
Iwata	O
said	O
that	O
cost	O
restraints	O
had	O
,	O
until	O
then	O
,	O
limited	O
the	O
screen	O
size	O
and	O
multiplayer	O
aspects	O
of	O
portable	B-Application
game	I-Application
consoles	I-Application
,	O
and	O
that	O
the	O
DSi	O
XL	O
offers	O
"	O
an	O
improved	O
view	O
angle	O
on	O
the	O
screens	O
"	O
,	O
which	O
makes	O
it	O
the	O
first	O
"	O
portable	O
system	O
that	O
can	O
be	O
enjoyed	O
with	O
people	O
surrounding	O
the	O
gamer.	O
"	O
</s>
<s>
The	O
DSi	O
XL	O
is	O
the	O
longest	O
,	O
widest	O
and	O
heaviest	O
DS	B-Device
model	O
.	O
</s>
<s>
The	O
console	O
features	O
two	O
wide-viewing-angle	O
LCD	B-Device
screens	I-Device
with	O
the	O
same	O
resolution	O
as	O
the	O
smaller	O
model	O
.	O
</s>
<s>
The	O
handheld	B-Application
is	O
outfitted	O
with	O
identical	O
speakers	O
contained	O
in	O
larger	O
speaker	B-Device
enclosures	I-Device
,	O
enabling	O
them	O
to	O
produce	O
louder	O
sound	O
.	O
</s>
<s>
Two	O
special-edition	O
models	O
were	O
released	O
:	O
those	O
for	O
LovePlus+	B-Application
and	O
the	O
25th	O
anniversary	O
of	O
Super	B-Application
Mario	I-Application
Bros	I-Application
.	I-Application
Flipnote	B-Application
Studio	I-Application
and	O
the	O
Nintendo	B-Application
DSi	I-Application
Browser	I-Application
come	O
pre-installed	O
with	O
the	O
DSi	O
XL	O
,	O
alongside	O
other	O
,	O
region-specific	O
software	O
.	O
</s>
<s>
Like	O
the	B-Operating_System
Wii	I-Operating_System
,	O
the	O
DSi	O
has	O
upgradeable	O
firmware	B-Application
,	O
and	O
features	O
a	O
menu	O
interface	O
that	O
displays	O
applications	O
as	O
selectable	O
icons	O
.	O
</s>
<s>
The	O
seven	O
primary	O
icons	O
represent	O
the	O
game	B-Device
card	I-Device
software	O
,	O
"	O
Nintendo	O
DSi	O
Camera	O
"	O
,	O
"	O
Nintendo	O
DSi	O
Sound	O
"	O
,	O
"	O
Nintendo	O
DSi	O
Shop	O
"	O
,	O
"	O
DS	B-Device
Download	O
Play	O
"	O
,	O
"	O
PictoChat	O
"	O
,	O
and	O
"	O
system	O
settings	O
"	O
;	O
additional	O
applications	O
may	O
be	O
downloaded	O
from	O
the	O
DSi	O
Shop	O
.	O
</s>
<s>
Icons	O
are	O
set	O
in	O
a	O
single-row	O
grid	O
navigable	O
with	O
the	O
stylus	B-Device
or	O
D-pad	O
,	O
and	O
may	O
be	O
re-arranged	O
via	O
drag-and-drop	O
.	O
</s>
<s>
Game	B-Device
cards	I-Device
may	O
be	O
hot	B-Device
swapped	I-Device
when	O
the	O
console	O
is	O
set	O
to	O
the	O
main	O
menu	O
,	O
allowing	O
players	O
to	O
switch	O
game	B-Device
cards	I-Device
without	O
shutting	O
down	O
.	O
</s>
<s>
The	O
DSi	O
has	O
more	O
extensive	O
multimedia	O
features	O
than	O
previous	O
models	O
;	O
AAC	B-Application
audio	I-Application
files	O
from	O
other	O
devices	O
,	O
pictures	O
,	O
and	O
downloadable	O
software	O
can	O
be	O
stored	O
to	O
an	O
SD	B-Device
card	I-Device
.	O
</s>
<s>
Images	O
captured	O
can	O
be	O
uploaded	O
to	O
the	B-Operating_System
Wii	I-Operating_System
's	O
Photo	O
Channel	O
,	O
and	O
,	O
for	O
consoles	O
with	O
the	O
1.4	O
firmware	B-Application
update	O
or	O
greater	O
,	O
to	O
the	O
social	O
networking	O
website	O
Facebook	B-Application
.	I-Application
</s>
<s>
These	O
clips	O
cannot	O
be	O
exported	O
to	O
an	O
SD	B-Device
card	I-Device
.	O
</s>
<s>
Users	O
can	O
play	O
music	O
from	O
SD	B-Device
cards	I-Device
with	O
visualizations	O
displayed	O
on	O
the	O
upper	O
screen	O
.	O
</s>
<s>
AAC	B-Application
audio	I-Application
with	O
.mp4	O
,	O
.m4a	O
,	O
or	O
.3gp	O
filename	O
extensions	O
are	O
supported	O
,	O
but	O
non-AAC	O
formats	O
,	O
including	O
MP3	B-Application
,	O
are	O
not	O
supported	O
.	O
</s>
<s>
Sounds	O
like	O
drum	O
beats	O
and	O
the	O
classic	O
Mario	B-Application
jumping	O
noises	O
can	O
be	O
added	O
with	O
button	O
presses	O
.	O
</s>
<s>
Users	O
may	O
export	O
photos	O
,	O
sounds	O
,	O
and	O
Internet	O
settings	O
to	O
a	O
3DS	B-Operating_System
.	O
</s>
<s>
The	O
Nintendo	O
DSi	O
connects	O
to	O
the	O
Internet	O
via	O
either	O
its	O
built-in	O
802.11b/g	O
Wi-Fi	O
or	O
a	O
Nintendo	B-Application
Wi-Fi	I-Application
USB	I-Application
Connector	I-Application
;	O
both	O
methods	O
grant	O
access	O
to	O
the	O
Nintendo	O
Wi-Fi	O
Connection	O
service	O
.	O
</s>
<s>
The	O
DSi	O
supports	O
WEP	B-Protocol
,	O
WPA	O
(	O
AES/TKIP	O
)	O
,	O
and	O
WPA2	O
(	O
AES/TKIP	O
)	O
wireless	B-Application
encryption	I-Application
;	O
only	O
software	O
with	O
built-in	O
support	O
can	O
use	O
the	O
latter	O
two	O
encryption	O
types	O
,	O
as	O
they	O
were	O
not	O
supported	O
by	O
the	O
DS	B-Device
and	O
DS	B-Device
Lite	I-Device
.	O
</s>
<s>
Up	O
to	O
six	O
wireless	O
Internet	O
connection	O
profiles	O
can	O
be	O
saved	O
;	O
using	O
the	O
traditional	O
setup	O
method	O
,	O
the	O
first	O
three	O
profiles	O
support	O
WEP	B-Protocol
encryption	O
,	O
while	O
the	O
remaining	O
three	O
are	O
selectable	O
under	O
a	O
more	O
advanced	O
option	O
,	O
which	O
supports	O
WPA	O
encryption	O
.	O
</s>
<s>
Under	O
this	O
advanced	O
option	O
,	O
users	O
may	O
access	O
the	O
Wi-Fi	B-Protocol
Protected	I-Protocol
Setup	I-Protocol
method	O
and	O
configure	O
proxy	B-Application
settings	O
.	O
</s>
<s>
The	O
DSi	O
can	O
automatically	O
detect	O
Nintendo	B-Device
Zone	I-Device
service	O
areas	O
thus	O
preventing	O
the	O
need	O
to	O
manually	O
setup	O
Wi-Fi	B-Application
connections	I-Application
.	O
</s>
<s>
All	O
DS	B-Device
games	I-Device
are	O
compatible	O
with	O
the	O
DSi	O
,	O
except	O
those	O
that	O
require	O
the	O
GBA	B-Device
slot	O
.	O
</s>
<s>
Because	O
of	O
its	O
absence	O
,	O
the	O
DSi	O
is	O
not	O
backward	B-General_Concept
compatible	I-General_Concept
with	O
GBA	B-Device
Game	B-Device
Paks	I-Device
or	O
with	O
accessories	B-Device
that	O
require	O
the	O
GBA	B-Device
slot	O
,	O
such	O
as	O
the	O
Nintendo	B-Device
DS	I-Device
Rumble	B-Device
Pak	I-Device
and	O
the	O
Guitar	B-Device
Hero	I-Device
:	I-Device
On	I-Device
Tour	I-Device
series	I-Device
guitar	O
grip	O
.	O
</s>
<s>
"	O
DSi-enhanced	O
"	O
game	B-Device
cards	I-Device
contain	O
DSi-exclusive	O
features	O
,	O
but	O
can	O
still	O
be	O
used	O
with	O
earlier	O
models	O
;	O
"	O
DSi-exclusive	O
"	O
game	B-Device
cards	I-Device
cannot	O
.	O
</s>
<s>
The	O
DSi	O
is	O
Nintendo	O
's	O
first	O
region-locked	O
handheld	B-Application
;	O
it	O
prevents	O
using	O
certain	O
software	O
released	O
for	O
another	O
region	O
.	O
</s>
<s>
Homebrew	O
flash	O
cards	O
designed	O
for	O
previous	O
DS	B-Device
models	O
are	O
incompatible	O
with	O
the	O
DSi	O
,	O
but	O
new	O
cards	O
capable	O
of	O
running	O
DS	B-Device
software	O
on	O
a	O
DSi	O
were	O
available	O
.	O
</s>
<s>
Like	O
the	B-Operating_System
Wii	I-Operating_System
,	O
the	O
DSi	O
could	O
connect	O
to	O
an	O
online	O
store	O
.	O
</s>
<s>
The	O
store	O
,	O
called	O
the	O
DSi	O
Shop	O
,	O
allowed	O
users	O
to	O
download	O
DSiWare	O
games	O
and	O
applications	O
,	O
which	O
were	O
paid	O
for	O
with	O
a	O
Nintendo	B-Application
Points	I-Application
Prepaid	O
Card	O
(	O
previously	O
known	O
as	O
Wii	B-Application
Points	I-Application
Prepaid	O
Card	O
)	O
.	O
</s>
<s>
The	O
service	O
launched	O
with	O
the	O
DSi	B-Application
Browser	I-Application
,	O
a	O
free	O
web	O
browser	O
developed	O
by	O
Opera	O
Software	O
and	O
Nintendo	O
.	O
</s>
<s>
A	O
DSiWare	O
trial	O
campaign	O
,	O
whose	O
expiration	O
date	O
varied	O
by	O
region	O
,	O
formerly	O
offered	O
1,000	O
free	O
Nintendo	B-Application
Points	I-Application
to	O
each	O
DSi	O
that	O
accesses	O
the	O
DSi	O
Shop	O
.	O
</s>
<s>
Most	O
DSiWare	O
can	O
be	O
transferred	O
to	O
a	O
3DS	B-Operating_System
,	O
however	O
saved	O
data	O
cannot	O
.	O
</s>
<s>
Nintendo	B-Application
Points	I-Application
became	O
irredeemable	O
on	O
September	O
30	O
,	O
2016	O
,	O
and	O
the	O
Nintendo	O
DSi	O
Shop	O
was	O
shut	O
down	O
on	O
March	O
31	O
,	O
2017	O
.	O
</s>
<s>
Critics	O
praised	O
many	O
of	O
the	O
console	O
's	O
changes	O
to	O
the	O
DS	B-Device
Lite	I-Device
's	O
aesthetic	O
and	O
functionality	O
,	O
but	O
complained	O
that	O
it	O
launched	O
with	O
insufficient	O
exclusive	O
software	O
.	O
</s>
<s>
Jeff	O
Bakalar	O
of	O
CNET	O
said	O
that	O
owners	O
of	O
the	O
original	O
DS	B-Device
should	O
consider	O
buying	O
a	O
DSi	O
,	O
but	O
that	O
its	O
only	O
incentive	O
for	O
DS	B-Device
Lite	I-Device
owners	O
was	O
the	O
DSi	O
Shop	O
.	O
</s>
<s>
Many	O
critics	O
were	O
disappointed	O
by	O
the	O
removal	O
of	O
the	O
GBA	B-Device
cartridge	O
slot	O
,	O
but	O
some	O
of	O
them	O
,	O
such	O
as	O
PCWorlds	O
Darren	O
Gladstone	O
,	O
Bit-techs	O
Joe	O
Martin	O
,	O
and	O
IGN	O
's	O
Harris	O
and	O
Lowe	O
,	O
believed	O
that	O
it	O
was	O
a	O
reasonable	O
exchange	O
for	O
SD	B-Device
card	I-Device
support	O
and	O
the	O
DSi	O
Shop	O
.	O
</s>
<s>
However	O
,	O
Bakalar	O
stated	O
,	O
"	O
We	O
'd	O
gladly	O
give	O
up	O
the	O
4	O
millimeters	O
[	O
of	O
reduced	O
thickness ]	O
to	O
be	O
able	O
to	O
play	O
any	O
Game	B-Device
Boy	I-Device
Advance	I-Device
game.	O
"	O
</s>
<s>
Edwards	O
said	O
that	O
the	O
camera	O
's	O
use	O
in	O
gameplay	O
was	O
a	O
new	O
opportunity	O
for	O
developers	O
;	O
Martin	O
did	O
not	O
think	O
that	O
the	O
concept	O
would	O
be	O
widely	O
adopted	O
,	O
as	O
he	O
believed	O
it	O
to	O
be	O
"	O
a	O
gimmick	O
that	O
would	O
alienate	O
 [ ... ] 	O
DS	B-Device
Lite	I-Device
owners	O
"	O
.	O
</s>
<s>
Eurogamer	O
's	O
Tom	O
Bramwell	O
speculated	O
that	O
the	O
DSi	O
follows	O
Game	B-Device
&	I-Device
Watch	I-Device
and	O
Game	B-Device
Boy	I-Device
creator	O
Gunpei	O
Yokoi	O
's	O
philosophy	O
of	O
using	O
dated	O
technology	O
developers	O
are	O
familiar	O
with	O
to	O
introduce	O
new	O
game	O
design	O
concepts	O
that	O
are	O
inexpensive	O
enough	O
for	O
mass	O
production	O
at	O
a	O
profit	O
.	O
</s>
<s>
Because	O
of	O
the	O
DSi	O
's	O
additions	O
to	O
the	O
DS	B-Device
Lite	I-Device
design	O
,	O
critics	O
recommended	O
the	O
console	O
to	O
those	O
who	O
had	O
not	O
purchased	O
a	O
previous	O
DS	B-Device
model	O
.	O
</s>
<s>
Gladstone	O
gave	O
the	O
DSi	O
a	O
score	O
of	O
75/100	O
,	O
and	O
said	O
that	O
Nintendo	O
"	O
puts	O
in	O
smart	O
nips	O
and	O
tucks	O
to	O
its	O
already-svelte	O
handheld	B-Application
while	O
adding	O
a	O
raft	O
of	O
useful	O
multimedia	O
features.	O
"	O
</s>
<s>
Douglas	O
Rankine	O
of	O
Wired	O
UK	O
and	O
McKinley	O
Noble	O
of	O
GamePro	O
thought	O
previously	O
existing	O
Nintendo	B-Device
DS	I-Device
games	I-Device
were	O
revitalized	O
with	O
the	O
Nintendo	O
DSi	O
XL	O
's	O
larger	O
screens	O
;	O
games	O
like	O
Scribblenauts	B-Application
and	O
The	B-Application
World	I-Application
Ends	I-Application
with	I-Application
You	I-Application
benefited	O
from	O
increased	O
touchscreen	B-Device
precision	O
and	O
increased	O
legibility	O
of	O
text	O
,	O
respectively	O
.	O
</s>
<s>
Carol	O
Mangis	O
of	O
PC	O
Magazine	O
thought	O
families	O
looking	O
to	O
share	O
a	O
handheld	B-Application
between	O
members	O
should	O
consider	O
a	O
DSi	O
XL	O
,	O
but	O
the	O
larger	O
screens	O
were	O
not	O
enough	O
of	O
an	O
incentive	O
for	O
current	O
DSi	O
owners	O
to	O
upgrade	O
.	O
</s>
